Carlos,
Please note that the thread you pulled up was from 5 years ago.
We have no idea if the originator, philmsa, is still with the linked group - social phobics anonymos - or not. In other words, you may not get an answer to your question. I'm sorry.
However, we do have an anxiety forum here on SR. Here's the link to it:
Anxiety Disorders - SoberRecovery : Alcoholism Drug Addiction Help and Information
I hope you'll find your way over and meet some of our members there who share your concerns. On the top of the forums are some stickies too, that you may find of interest.
Welcome to SR!
Shalom!